[Intel-wired-lan] [PATCH v2 iwl-net 6/8] ice: improve updating ice_{t, r}x_ring::xsk_pool

[Rout, ChandanX]

>-----Original Message-----
>From: Intel-wired-lan <intel-wired-lan-bounces at osuosl.org> On Behalf Of
>Fijalkowski, Maciej
>Sent: Wednesday, May 29, 2024 4:54 PM
>To: intel-wired-lan at lists.osuosl.org
>Cc: Fijalkowski, Maciej <maciej.fijalkowski at intel.com>; Zaremba, Larysa
><larysa.zaremba at intel.com>; netdev at vger.kernel.org; Kubiak, Michal
><michal.kubiak at intel.com>; Nguyen, Anthony L
><anthony.l.nguyen at intel.com>; Karlsson, Magnus
><magnus.karlsson at intel.com>
>Subject: [Intel-wired-lan] [PATCH v2 iwl-net 6/8] ice: improve updating ice_{t,
>r}x_ring::xsk_pool
>
>xsk_buff_pool pointers that ice ring structs hold are updated via ndo_bpf that is
>executed in process context while it can be read by remote CPU at the same
>time within NAPI poll. Use synchronize_net() after pointer update and
>{READ,WRITE}_ONCE() when working with mentioned pointer.
>
>Fixes: 2d4238f55697 ("ice: Add support for AF_XDP")
>Signed-off-by: Maciej Fijalkowski <maciej.fijalkowski at intel.com>
>---
> drivers/net/ethernet/intel/ice/ice.h      |  6 +-
> drivers/net/ethernet/intel/ice/ice_base.c |  4 +-
>drivers/net/ethernet/intel/ice/ice_main.c |  2 +-
>drivers/net/ethernet/intel/ice/ice_txrx.c |  4 +-
>drivers/net/ethernet/intel/ice/ice_xsk.c  | 78 ++++++++++++++---------
>drivers/net/ethernet/intel/ice/ice_xsk.h  |  4 +-
> 6 files changed, 59 insertions(+), 39 deletions(-)
>

Tested-by: Chandan Kumar Rout <chandanx.rout at intel.com> (A Contingent Worker at Intel)